Lull 944E-42 Service Manual - Manual (Page 775)

10.17 Model 644E-42/944E-42 Rev. 6/04
Stabil-TRAK™ System
10.5 STABIL-TRAK™ SYSTEM TEST
(644E-42, SN 20118 & Before,
SN 0160002519 thru 0160003877)
(944E-42, SN 20123 & Before,
SN 0160002514 thru 0160003881)
IMPORTANT: The operator must know that the
Stabil-TRAK™ system is active and functioning properly.
To test the function of the Stabil-TRAK™ system, read
the Stabil-TRAK™ System Test instructions and follow
Steps 1-9 of Section 10.5.2, “Stabil-TRAK™ System Test
Procedures (644E-42, SN 20118 & Before,
SN 0160002519 thru 0160003887)
(944E-42, SN 20123 & Before,
SN 0160002514 thru 0160003881).”
10.5.1 Stabil-TRAK™ System Test
Instructions
(644E-42, SN 20118 & Before,
SN 0160002519 thru 0160003877)
(944E-42, SN 20123 & Before,
SN 0160002514 thru 0160003881)
• Test the Stabil-TRAK™ system with the vehicle
on a level surface.
• Remove any attachment from the quick attach
before performing the test.
• DO NOT extend the boom at any time during the
test. Perform the test with the boom fully retracted.
• DO NOT transfer the carriage forward any time
during the test. Keep the transfer carriage in the
fully retracted position.
• DO NOT raise the boom above 60° for Steps 3-6.
• DO NOT raise the boom above 45° for Steps 7-9.
• Follow Steps 1 through 9 of the Stabil-TRAK™
system test procedure exactly as written.
IMPORTANT: If the Stabil-TRAK™ lock light goes OFF
and the front left tire lowers to the ground at any time
during Steps 4-7, the test was not performed properly or
the Stabil-TRAK™ system is not functioning properly.
Carefully repeat the steps starting with Step 1.
If the Stabil-TRAK™ lock light goes OFF and the front left
tire lowers to the ground consistently during Steps 4-7, the
Stabil-TRAK™ system is not functioning properly and the
test should be stopped immediately. If the Stabil-TRAK™
system is not functioning properly, follow the procedures
in Section 10.8, “Stabil-TRAK™ Hydraulic Circuit
Operation and Troubleshooting,” to repair the system.
Note: The front left tire off of the ground during the test
is a visible indication that the stability system is in the
locked mode.
10.5.2 Stabil-TRAK™ System Test
Procedures
(644E-42, SN 20118 & Before,
SN 0160002519 thru 0160003887)
(944E-42, SN 20123 & Before,
SN 0160002514 thru 0160003881)
Note: If Steps 1-9 prove positive, the Stabil-TRAK™
system is functioning properly, and the vehicle can be
returned to service. If any of these steps indicate that the
Stabil-TRAK™ system is not functioning properly, follow
the procedures in Section 10.8, “Stabil-TRAK™ Hydraulic
Circuit Operation and Troubleshooting,” to repair the
system.
WARNING:
DO NOT operate this vehicle
unless you are in the seat with the seat belt
fastened around you. Death or serious injury
could result if the belt is not securely fastened.